diff options
Diffstat (limited to 'transex3/java/jpropex/java/OrderedHashMap.java')
-rw-r--r-- | transex3/java/jpropex/java/OrderedHashMap.java | 96 |
1 files changed, 96 insertions, 0 deletions
diff --git a/transex3/java/jpropex/java/OrderedHashMap.java b/transex3/java/jpropex/java/OrderedHashMap.java new file mode 100644 index 000000000000..a462d598b307 --- /dev/null +++ b/transex3/java/jpropex/java/OrderedHashMap.java @@ -0,0 +1,96 @@ +/************************************************************************* + * + * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. + * + * Copyright 2000, 2010 Oracle and/or its affiliates. + * + * OpenOffice.org - a multi-platform office productivity suite + * + * This file is part of OpenOffice.org. + * + * OpenOffice.org is free software: you can redistribute it and/or modify + * it under the terms of the GNU Lesser General Public License version 3 + * only, as published by the Free Software Foundation. + * + * OpenOffice.org is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU Lesser General Public License version 3 for more details + * (a copy is included in the LICENSE file that accompanied this code). + * + * You should have received a copy of the GNU Lesser General Public License + * version 3 along with OpenOffice.org. If not, see + * <http://www.openoffice.org/license.html> + * for a copy of the LGPLv3 License. + * + ************************************************************************/ + + +import java.util.*; + +// LinkedHashMap implrementation +public class OrderedHashMap +{ + private HashMap hm = new HashMap(); + private LinkedList list = new LinkedList(); + + public Iterator iterator() { return list.iterator(); } + + public boolean isEmpty() { return hm.isEmpty(); } + public Object get( Object key ) { return hm.get( key ); } + public Object get( int index ) { return hm.get( list.get( index ) ); } + public Iterator keys() { return list.iterator(); } + public Object add( Object key , Object value ) + { + list.add( key ); + return hm.put( key, value ); + } + public Object add( int index , Object key , Object value ) + { + list.add( index , key ); + return hm.put( key, value ); + } + public Object remove( Object key ) + { + list.remove( list.indexOf( key ) ); + return hm.remove( key ); + } + public void move( int idxFrom , int idxTo ) + { + Object key = list.get( idxFrom ); + list.remove( idxFrom ); + list.add( idxTo , key ); + } + public void move( Object key , int idxTo ) + { + move( list.indexOf( key ) , idxTo ); + } + public int size() + { + return hm.size(); + } + public Enumeration elements() + { + return new OHMenum( this ); + } +} + +final class OHMenum implements Enumeration +{ + OrderedHashMap ohm; + int index = 0; + + private OHMenum(){}; + public OHMenum( OrderedHashMap ohm ){ + this.ohm = ohm ; + } + + public boolean hasMoreElements() + { + return index < ohm.size(); + } + public Object nextElement() + { + return ohm.get( index++ ); + } +} |